Home / 1,707.36-2,561.04-1,221.36

Finding the Fourth Proportional to 1,707.36, 2,561.04 and 1,221.36

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Solution

The fourth proportional to 1,707.36, 2,561.04 and 1,221.36 is: 1,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.36 : 2,561.04 = 1,221.36 : x
  2. Step 2: Convert to fraction form
    1,707.36/2,561.04 = 1,221.36/x
  3. Step 3: Cross multiply
    1,707.36x = 2,561.04 × 1,221.36
  4. Step 4: Simplify right side
    1,707.36x = 3,127,951.81
  5. Step 5: Solve for x
    x = 3,127,951.81/1,707.36
  6. Step 6: Final answer
    x = 1,832.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.